Used 2021 Jeep Gladiator for Sale nearSaint Louis, MO

How much does the 2021 Jeep Gladiator cost?

Prices have softened 8.47% compared to this time last year, making it a favorable time to shop this model year.

There are 5,031 listings available, which suggests solid inventory for comparison shopping.

Is the 2021 Jeep Gladiator a good car?

Yes — the 2021 Jeep Gladiator earns a 5/5 user rating and a 7.2/10 expert rating. The standout strength is Look and feel at 9/10.

Owners consistently praise its ruggedness, off-road capability, and unique design, and many also like the diesel’s stronger performance and the comfortable interior. The trade-offs are the poor fuel economy and the high price, especially given the small bed size.

For you, that means the Gladiator makes the most sense if you want a midsize truck with personality, open-air appeal, and trail-ready character rather than a purely practical commuter pickup. Good and great deals account for 36.1% of listings, which gives you some room to shop selectively.

Is the 2021 Jeep Gladiator reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction.

The owner feedback points to a truck that feels rugged, dependable, and capable of handling long-term use with confidence. The diesel powertrain adds strong low-end performance, and the model also comes with free scheduled maintenance during the first three years or 36,000 miles of ownership.

For used buyers, the main long-term risk is that the Gladiator’s appeal comes with higher running costs and a more specialized ownership experience than many midsize trucks.

What should I look for when buying a used 2021 Jeep Gladiator?

Accident-free inventory is solid at 82.5% — always verify the vehicle history report.

You should still check the history report carefully, because a clean listing percentage does not replace a proper records review. Prioritize a pre-purchase inspection that focuses on wear from off-road use, suspension condition, and signs of hard use. It also helps to compare trim equipment closely, since the Gladiator’s standard setup is sparse and many desirable features are optional.

Key things to evaluate:

• Trim level: The standard setup is basic, with a reversing camera and not much else, while higher trims add more comfort, capability, and equipment. The Sport S is the first trim to get the better infotainment setup, and the Overland and High Altitude move the truck toward more upscale features.
• Powertrain: A 3.6-liter gasoline V6 is standard, and a 3.0-liter turbo-diesel V6 is available for buyers who want stronger low-end torque and better fuel economy than the gas engine.
• Safety package: The available driver-assistance suite can include adaptive cruise control, forward collision warning, automatic emergency braking, blind-spot monitoring, rear cross-traffic alert, and automatic high beams. These features are not standard across the lineup.
• Infotainment: The base system uses a 5-inch display, while the upgraded Uconnect 4 system brings a 7-inch touchscreen, Apple CarPlay, and Android Auto. The top system adds an 8.4-inch touchscreen, navigation, connected services, remote start, and a WiFi hotspot.
• Fuel efficiency: The diesel returns noticeably better fuel economy than the gas engine, and testing showed 22.6 mpg on a mountainous loop. A prior gasoline test returned 20.3 mpg.

Which 2021 Jeep Gladiator trim should I buy?

The 2021 Jeep Gladiator is offered in 5 trim levels: Sport, Sport S, Willys, Overland, and High Altitude.

Here's the short version:

• Sport: This is the entry point, and it keeps the price down with the most basic top, crank windows, a manual transmission, all-season tires, and the 5-inch display. It makes sense if you want the Gladiator experience at the lowest starting price and do not mind a stripped-down setup.
• Sport S: This is the best-value trim because it unlocks the better Uconnect 4 system with the 7-inch touchscreen, Apple CarPlay, and Android Auto. If you want the most important everyday upgrades without jumping too far up the price ladder, this is the trim to target.
• Willys: This trim adds a blacked-out grille, limited-slip rear differential, rock rails, and 32-inch all-terrain tires. It suits you if you want a more trail-focused look and hardware without moving into the upper luxury-oriented trims.
• Overland: This trim leans into comfort and convenience, and it is also the first trim to get the forward-facing Trail Cam. It is a strong choice if you want a more polished Gladiator with useful tech for off-road visibility.
• High Altitude: This is the luxury-oriented choice, with body-color detailing, black 20-inch wheels, and premium Nappa leather. It fits you best if you want the most upscale Gladiator experience.

For safety equipment, the available driver-assistance features vary by trim, so you should confirm exactly which systems are included on the truck you are considering.

Is now a good time to buy a used 2021 Jeep Gladiator?

This looks like a moderate, selective buyer’s market, so you can shop carefully and still find worthwhile listings.

• Deal availability: 36.1% of listings are priced as good or great deals.
• Inventory: There are 5,031 listings available.
• Price trend: Prices have softened 8.47% compared with last year.
• Clean inventory: 82.5% of listings are accident-free.

If you find a listing below $29,617, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Jeep Gladiator's resale value?

The current average of $29,617 sits slightly below last year's $32,358.

That decline suggests the market has become more favorable for buyers, but it also means sellers may need to price competitively to stand out. If you own one, the Gladiator’s distinctive appeal can help support demand, especially among shoppers who want a truck with personality and off-road character.

Vehicles with strong owner satisfaction ratings, like this model year's 5/5, tend to retain buyer demand, which supports resale value over time.

Is the 2021 Jeep Gladiator safe?

The 2021 Jeep Gladiator earns a four-star frontal-impact rating from NHTSA and three-star rollover resistance ratings regardless of engine selection.

It earns a 7/10 safety score from our experts.

The available driver-assistance suite can include adaptive cruise control, forward collision warning, automatic emergency braking, blind-spot monitoring, rear cross-traffic alert, and automatic high beams. Standard safety equipment is limited, so you should pay close attention to which features are actually installed on the used truck you are considering.

The main caveat is that the truck’s crash-test results are mixed, and the standard safety setup is sparse.

Should I buy a 2021 Jeep Gladiator or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 36.1% of listings are priced as good or great deals.
• Accident-free inventory is solid at 82.5% — always verify the vehicle history report.
• Price trend: Prices have softened 8.47% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.
• The 2021 adds a turbo-diesel engine option, free scheduled maintenance, and fresh special-edition models.

Consider the 2020 if:

• At $27,140, the 2020 costs less than the current year's $29,617 average.
• It emphasizes Jeep’s off-road identity and midsize pickup usefulness.

The bottom line: If you want the best mix of current-market value, strong owner satisfaction, and the 2021-specific updates, the 2021 is the better default choice. If your priority is spending less up front, the 2020 is the more budget-friendly path.

How does the 2021 Jeep Gladiator compare to the 2021 Ford Bronco?

Expert Pros & Cons (per CarGurus review team)

2021 Jeep Gladiator:

• Pros: Stylish design, Manual transmission available, Fun to drive.
• Cons: Poor fuel economy, Poor ride quality, Poor handling.

2021 Ford Bronco:

• Pros: Excellent off-road capability, Stylish design, Great ride quality.
• Cons: Poor fuel economy, Noisy, Stereo is lacking.

Our experts score the 2021 Jeep Gladiator 7.2/10 and the 2021 Ford Bronco 8/10. The Gladiator stands out for its manual transmission and truck utility, while the Bronco gets the edge on ride quality and off-road capability. Both have poor fuel economy, so your choice comes down to whether you want the Gladiator’s pickup format or the Bronco’s more refined overall package.

These recommendations are based on CarGurus' proprietary market data from November 10, 2026, CarGurus experts' opinions, and generative AI.